appadmin-demosss/app/Models/Trace.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Log;

class Trace extends Model
{
    protected $table='se_code';

    protected $fillable=['level','pid','sort','track_status','is_true','com_binding','user_id','security_code','code','child_num','select_num','is_lowest','model','act_id'];

    const MODEL_ONE = '1:6:36';
    const MODEL_TWO = '1:6:24';
    const MODEL_THREE = '1:10';

    public static $model = [

        self::MODEL_ONE => ['grade'=>3,'num'=>['num2'=>6,'num3'=>6]],
        self::MODEL_TWO => ['grade'=>3,'num'=>['num2'=>6,'num3'=>4]],
        self::MODEL_THREE => ['grade'=>2,'num'=>['num2'=>10]],
    ];

    public function get_child(){
        return $this->hasMany(Trace::class,'pid');
    }

    public function get_childs(){
        return $this->hasMany(Trace::class,'pid','sort');
    }

    public function user(){
        return $this->belongsTo(User::class,'user_id');
    }

    public function get_goods(){
        return $this->belongsTo(TraceGoods::class,'good_select_id');
    }

    public function get_express(){
        return $this->hasMany(TraceExpress::class,'select_id');
    }

    public static function add_code($pid,$grade,$num)
    {
        if($pid==0){
            $level=1;
        }else{
            $ll=Trace::where('id',$pid)->value('level');
            $level=$ll+1;
        }
        if($level==$grade){
            $is_lowest=1;
            $child_num=0;
        }else{
            $n='num'.($level+1);
            $child_num=$num[$n];
            $is_lowest=0;
        }
        $code=self::code();
        $result=Trace::create([
            'level'=>$level,
            'pid'=>$pid,
            'track_status'=>0,
            'is_true'=>0,
            'com_binding'=>1,
            'user_id'=>null,
            'security_code'=>$code['sec_code'],
            'code'=>$code['code'],
            'child_num'=>$child_num,
            'select_num'=>0,
            'is_lowest'=>$is_lowest,
        ]);
        return $result->id;
    }

    public static function code(){
        $str='QWER34TYUIO_2PASDFG+1HJK567LZXC890VBNM';
        $code='';
        for ($i=0;$i<8;$i++){
            $num=rand(0,37);
            $code.=mb_substr($str,$num,1);
        }
        $code1=Str_random(10);
        $code=date('y',time()).$code1.mb_substr(hash('sha256',$code),1,8).$code.date('md',time());
        return ['code'=>$code,'sec_code'=>mt_rand(1000,9999).mt_rand(1000,9999)];
    }

}